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Safe trailing distance warning for vehicles

  • US 5,162,794 A
  • Filed: 11/21/1989
  • Issued: 11/10/1992
  • Est. Priority Date: 11/21/1989
  • Status: Expired due to Fees
First Claim
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1. A method for spacing vehicles comprising a first vehicle having a rear directed first detection means capable of detecting a rear located second vehicle wherein the first vehicle has means cable of determining the rate at which the second vehicle is reducing the distance between the first and second vehicles, said first vehicle also having signaling means for generating a signal directed to said second vehicle when the second vehicle'"'"'s velocity and/or distance relative to the first vehicle is determined to be too great to safely stop before contacting the first vehicle from the rear wherein the signaling means generates a signal which is proportionately related to the velocity of the second vehicle, provided further that the signaling means is inactivated when the velocity of the first vehicle or the second vehicle is less than a predetermined rate.

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